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NCJ Number: 156061 Add to Shopping cart Find in a Library
Title: Effectiveness of Partial Drug Testing: Evaluation of an Acceptance Sampling Approach
Author(s): P K Lattimore; J R Baker; L A Matheson; E Kennedy
Date Published: 1995
Page Count: 56
Sponsoring Agency: Illinois Criminal Justice Information Authority
Chicago, IL 60606
National Institute of Justice (NIJ)
Washington, DC 20531
National Institute of Justice/
Rockville, MD 20849
National Institute of Justice/NCJRS
Rockville, MD 20849
NCJRS Photocopy Services
Rockville, MD 20849-6000
US Dept of Justice NIJ Pub
Washington, DC 20531
Sale Source: National Institute of Justice/NCJRS
Box 6000
Rockville, MD 20849
United States of America

National Institute of Justice/
NCJRS paper reproduction
Box 6000, Dept F
Rockville, MD 20849
United States of America

NCJRS Photocopy Services
Box 6000
Rockville, MD 20849-6000
United States of America
Document: PDF
Type: Survey
Language: English
Country: United States of America
Annotation: Partial testing of collected urine specimens provides an opportunity to reduce the costs of a drug testing program, particularly if partial testing can be done without an attendant rise in the proportion of the population testing positive for drugs.
Abstract: Partial testing of a population of items is routine in manufacturing where statistical quality control procedures include sampling plans that identify how many units of a production run are to be tested. One approach to quality control is acceptance sampling, based on a sampling plan that minimizes total costs of the quality control program. The sampling plan consists of the number of items to be tested and a decision rule that specifies under what sampling outcomes the entire population should be tested. A field evaluation of the acceptance sampling approach to drug testing was conducted in intensive drug supervision programs of six Illinois county probation offices. Sampling plans were identified for drug testing programs that required less than 100 percent testing of collected urine specimens and that yielded total costs lower than the current approach of 100 percent testing. The amount of feedback on drug tests provided to probation officers and thus to probationers was controlled during the evaluation. Counties were assigned to one of three feedback conditions: no feedback, random feedback based on an acceptance sampling plan, or 100 percent feedback. Results showed that using acceptance sampling could have reduced testing without increasing the proportion of those testing positive. The percent testing positive increased throughout the study in counties with no feedback. The authors conclude that an acceptance sampling approach to drug testing may offer improvements over traditional approaches. An appendix tabulates the results of time utilization data collection. 8 references, 23 tables, and 9 figures
Main Term(s): Drug testing
Index Term(s): Illinois; Intensive supervision programs; Probation conditions; Urinalysis
Note: NIJ Working Paper 95-01
To cite this abstract, use the following link:
http://www.ncjrs.gov/App/publications/abstract.aspx?ID=156061

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